Excavator Bucket Services

Step 1

Determine the material type and bucket fill factor.

Refer to your supplier's bucket fill factors table

Example: 

Average Blasted Rock = 75 to 90%

Step 2

Estimate the Cycle Time

Refer to the supplier's equipment cycle time estimating chart

(Make a guess on which machine model to use, just to get started…)

Example:

CAT 365B in Hard Rock Digging/

Shot Rock = 0.43 to 0.52 minute

Step 3

Calculate the Effective Cycles per Hour
Divide the 60 minute hour by cycle time and adjust for availability

and efficiencies.

Example:

Step 4

Calculate the Required Bucket Capacity

Divide hourly production requirement by effective cycles per hour,

adjust for material density and fill factor.

Example:

Step 5

Select Mass Excavator for required bucket size

Refer to your supplier's handbook to compare machine models and bucket ranges available.

Confirm bucket type, size, and maximum material density.

Example:

Required bucket capacity approximately 4.1 m3

CAT 345B LME bucket capacity to 3.5 m3

CAT 365B LME bucket capacity to 4.3 m3

CAT 385B LME bucket capacity to 5.8 m3
 

Best Choice CAT 365B with 4.0 m3 Rock Bucket

Pay attention to correct boom, stick, and bucket type